Method for directly writing data into optic disk

ABSTRACT

A method for directly writing data into an optic disk is performed by an optic disk drive incorporating a control unit to which an external data storage device, such as compact flash memory device, is connected. The method includes steps of (1) initiating a writing operation, (2) setting the optic disk drive to busy condition, (3) checking if an optic disk is properly loaded and if the external memory device is correctly connected, (3) issuing a warning, if they are not properly loaded or connected, (4) checking if the optic disk is a UDF disk, (5) issuing a warning, if it is not, (6) creating a fold in the optic disk, (7) retrieving data from the external data storage device and writing the data into the fold of the optic disk, and (8) ending the writing operation. No computer-based interface is required between the optic disk drive and the external data storage device in performing the data writing operation.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention generally relates to a method for directly writing data into an optic disk without a computer system; and in particular to a method for directly writing data retrieved from an electronic data storage into an optic disk without a computer system interfacing therebetween.

[0003] 2. The Related Art

[0004] With the rapid development and prevalence of electronic storages, such as compact flash memory, more and more data are stored in the electronic storage for portability and fast access. To more space-efficiently store the data, some people prefer to transfer the data from the electronic storage to optic disks for data backup purposes. Heretofore, the optic disk drive must be connected to a computer system for data writing operation. Thus, the data have to be read into the computer system and then written by the computer system into the optic disk accessed by means of the optic disk drive. This causes problems. For example, a computer system is a must in transferring data from a portable compact flash memory device to an optic disk. Thus, such a data transfer operation cannot be carried out without a computer system having proper data ports.

[0005] Thus, the present invention is aimed to solve the above problem by providing a method for directly transferring data from a compact flash memory device to an optic disk without a computer system interfacing therebetween.

SUMMARY OF THE INVENTION

[0006] Accordingly, an object of the present invention is to provide a method for writing data retrieved from an electronic storage to an optic disk without a computer system interfacing therebetween.

[0007] Another object of the present invention is to provide an optic disk drive capable to perform a direct writing operation to an optic disk without being controlled by a computer system.

[0008] To achieve the above objects, in accordance with the present invention, there is provided a method for directly writing data into an optic disk that is performed by an optic disk drive incorporating a control unit to which an external data storage device, such as compact flash memory device, is connected. The method comprises steps of (1) initiating a writing operation, (2) setting the optic disk drive to busy condition, (3) checking if an optic disk is properly loaded and if the external memory device is correctly connected, (3) issuing a warning, if they are not properly loaded or connected, (4) checking if the optic disk is a UDF disk, (5) issuing a warning, if it is not, (6) creating a fold in the optic disk, (7) retrieving data from the external data storage device and writing the data into the fold of the optic disk, and (8) ending the writing operation. No computer-based interface is required between the optic disk drive and the external data storage device in performing the data writing operation.

BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention will be apparent to those skilled in the art by reading the following description of a best mode of the operation thereof, with reference to the attached drawings, in which:

[0010]FIG. 1 is a schematic view of a system for performing a method of directly writing data into an optic disk in accordance with the present invention; and

[0011]FIG. 2 is a flow chart of the method for directly writing data into an optic disk in accordance with the present invention.

BEST MODE FOR CARRYING OUT THE PRESENT INVENTION

[0012] With reference to the drawings and in particular to FIG. 1, a method for directly writing data into an optic disk in accordance with the present invention is used in a rewriteable optic disk drive 20 for retrieving data from an electronic storage 10, such as a compact flash memory device 21, and directly writing the data into an optic disk loaded in the optic disk drive 20 without a computer system interfacing between the optic disk drive 20 and the compact flash memory device 21.

[0013] The method is preferably embodied in software form loaded in a control chip 16. The control chip 16 is arranged in a control unit 10. A number of operation keys, including a starting key 11, a writing key 12, a selection key 13 and a formatting key 14, and an operation indicator 15 are formed on the control unit 10 for user's control of the operation of the control unit 10. The starting key 11 is to power on the control unit 10 or to start the operation of the control unit 10. The writing key 12 is to start a writing operation of the optic disk drive 20 under the control of the control unit 10. The selection key 13 is to select among different writing modes. The formatting key 14 is to start a formatting operation of the optic disk by the optic disk drive 20. The indicator 15 indicates ending of the writing operation or the formatting operation.

[0014] Also referring to FIG. 2, the operation of directly writing data into an optic disk in accordance with the present invention is as follows:

[0015] (1) Actuating the starting key 11 to start the operation of the control unit 10;

[0016] (2) Setting the optic disk drive 20 to busy condition;

[0017] (3) Checking if an optic disk and a compact flash memory device are correctly loaded/connected. If they are not correctly connected, then issuing a warning;

[0018] (4) Checking if the optic disk is a UDF (Universal Disk Format) disk if the optic disk and the compact flash memory device are correctly connected. If the optic disk is not a UDF disk, then issuing a warning;

[0019] (5) Creating a new fold in a real time manner in the optic disk;

[0020] (6) Retrieving data from the compact flash memory device and writing the data into the new fold of the optic disk;

[0021] (7) Ending the writing operation;

[0022] (8) If no correcting operation is taken in step (3) or (4) to fix the warnings, then ending the operation of the control unit 10 with no data being written into the optic disk.

[0023] In accordance with the present invention, the above-discussed writing operation can be initiated by the actuation of the writing key 12. Alternatively, the control unit 10 can be designed to start the writing operation by the actuation of the start key 11. In this respect, the start key 11 starts the operation of the control unit 11 as well as initiates the writing operation. For a non-formatted disk, the formatting and writing operations can be done separately by means of the formatting key 14 and the writing key 12.

[0024] To this point, it can be observed that the electronic storage 21 is connected to the optic disk drive 20 by the control unit 10. For example, the electronic storage 21 can be connected to a standard communication port, such as a USB (Universal Serial Bus) port, formed on the control unit 10. The writing operation is initiated by the actuation of the keys of the control unit 10. Thus, a computer system is no longer needed in transferring data from the electronic storage 21 to the optic disk.

[0025] The control unit 10 can be combined with an optic disk drive. For example, the control chip 16 is integrated with the optic disk drive and the keys formed on a casing of the optic disk drive. This simplifies the operation. Thus, a compact flash memory device can be connected to an optic disk drive via for example a USB port. Data stored in the compact flash memory device can thus be transferred into an optic disk loaded in the optic disk drive without a computer system interfacing between the compact flash memory device and the optic disk drive.

[0026] Although the present invention has been described with reference to the best mode thereof it is apparent to those skilled in the art that a variety of modifications and changes may be made without departing from the scope of the present invention which is intended to be defined by the appended claims. 

What is claimed is:
 1. A method for directly writing data into an optic disk via an optic disk drive, the optic disk drive comprising a control unit to which an external data storage device is releasably connected and having operation keys, the method comprising the following steps: (a) initiating a writing operation; (b) setting the optic disk drive to a busy condition; (c) checking if the optic disk is correctly loaded in the optic disk drive and if the external data storage connected to the control unit; (d) if the optic disk is not correctly loaded or if the external storage is not connected to the control unit, issuing a warning; (e) checking if the optic disk is an UDF disk; (f) if the optic disk is not an UDF disk, issuing a warning; (g) creating a fold in the optic disk in real time manner; (h) retrieving data from the external data storage and writing the data into the fold of the optic disk; and (i) ending the writing operation.
 2. The method as claimed in claim 1 further comprising a step of ending the operation if the warning issued in step (d) is not properly corrected.
 3. The method as claimed in claim 2 further comprising a step of ending the writing operation if the warning issued in step (f) is not properly corrected. 